How long have you been on the thyroid medication? The
cytomel could give you the hot feeling, if the
dosage is too high, but 5 mcg is a pretty small dose, as is 25 mcg levo. It does take time for the medication to build in your system and it's not unusual for symptoms to worsen or for new ones to show up, as your body adjusts to the medication.
Please post the actual results of your thyroid tests and be sure to include reference ranges, which vary lab to lab.